<h1>Web Security Best Practices</h1>
<p>Security is crucial for any web application. Let&#39;s explore essential security practices to protect your applications.</p>
<h2>Key Security Areas</h2>
<ul>
<li>Authentication</li>
<li>Authorization</li>
<li>Data Encryption</li>
<li>Input Validation</li>
</ul>
<h2>Implementation Examples</h2>
<pre><code class="language-javascript">// Example of secure password hashing
const bcrypt = require(&quot;bcrypt&quot;);

async function hashPassword(password) {
  const salt = await bcrypt.genSalt(12);
  return bcrypt.hash(password, salt);
}

// Example of JWT implementation
const jwt = require(&quot;jsonwebtoken&quot;);

function generateToken(user) {
  return jwt.sign({ id: user.id, role: user.role }, process.env.JWT_SECRET, {
    expiresIn: &quot;1h&quot;,
  });
}
</code></pre>
<h2>Security Checklist</h2>
<ol>
<li>Use HTTPS</li>
<li>Implement proper authentication</li>
<li>Sanitize user input</li>
<li>Use secure headers</li>
<li>Regular security audits</li>
</ol>
